Aliquot from a random urine sample.
Onsite [NJH]: Transport to lab within 1 hour.
Preferred volume: 1 mL
Minimum volume: 500 mcL aliquot from a random urine sample.
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
8 hours at room temperature.
24 hours refrigerated at 2-8°C
>24 hours frozen at -20°C
Random urine sample is the only acceptable sample type.
Monday - Friday
Ion Selective Electrode